The ultimate cause of the vertical air movements is the pressure differences caused due to _________________ distribution of the heat of the sun.

If the pressure of atmosphere is changed suddenly, the blood vessels in our body will _____________ due to the pressure of the blood and other fluids inside.

What is the SI unit of thrust ?

In which of the following Archimedes Principle is used ?

The greater the height, the _______________________ the pressure.

The more the area of contact of a given body the ______________ the pressure it will exert.

Which of the following are correct :

(a) Pressure is defined as the force or thrust exerted over a unit area.

(b) Pressure is a scalar quantity.

Which of the following are correct :

(a) S.I. unit of thrust is newton (N).

(b) S.I. unit of thrust is Joule(J).

Which of the following are correct :

(a) The net force acting normal to a surface is called thrust.

(b) The net force acting normal to a surface is called pressure.

Which of the following are correct :

(a) The more the area of contact of a given body the lesser the pressure it will exert.

(b) The more the force acting on a body, the more the pressure it will exert.

(c) The lesser the area of contact of a given body, the more is the pressure exerted by it.